MLMediaLibrary: remove episodes from show if file no longer exists (close #9705)
MLMediaLibrary: remove episodes from show if file no longer exists (close #9705)

larrytin/MediaLibraryKit,TheHungryBu/MediaLibraryKit,TheHungryBu/MediaLibraryKit,TheHungryBu/MediaLibraryKit,TheHungryBu/MediaLibraryKit